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300-410 Practice Question: The default administrative distance for a route…
What is the default administrative distance for a route learned via the Border Gateway Protocol (BGP) from an external peer (eBGP)?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
20
eBGP routes have a default administrative distance of 20, which is lower than iBGP's default AD of 200.
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- ✓
20
Why this is correct
eBGP uses a default AD of 20 to prefer external paths over most IGP routes.
- ✗
200
Why it's wrong here
200 is the default AD for iBGP routes.
- ✗
170
Why it's wrong here
170 is the default AD for EIGRP external routes.
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1
Why it's wrong here
1 is the AD for static routes.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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